C++ QTextImageFormat::setName方法代码示例

void Format::parseBlock( QTextCursor &cursor, const QDomElement &element )
{
//  dbg() << "Format::parseBlock()" << endl;

  QDomNode n;
  for( n = element.firstChild(); !n.isNull(); n = n.nextSibling() ) {
    QDomElement e = n.toElement();
    if ( e.tagName() == "fragment" ) {
      QTextCharFormat format;
      if ( e.hasAttribute( "link" ) ) {
        format.setAnchor( true );
        QString href = e.attribute( "link" );
        format.setAnchorHref( href );
        format.setFontUnderline( true );
        if ( href.startsWith( "todoodle:" ) ) {
          format = TextFormats::topicLinkCharFormat( href );
        } else {
          format = TextFormats::hyperLinkCharFormat( href );
        }
      }
      if ( e.attribute( "bold" ) == "true" ) {
        format.setFontWeight( QFont::Bold );
      }
      if ( e.attribute( "italic" ) == "true" ) {
        format.setFontItalic( true );
      }
      int fontSize = 0;
      if ( e.hasAttribute( "fontsize" ) ) {
        fontSize = e.attribute( "fontsize" ).toInt();
      } else {
        fontSize = 10;
      }
      if ( fontSize > 0 ) format.setFontPointSize( fontSize );
      
      QDomNode n2;
      for( n2 = e.firstChild(); !n2.isNull(); n2 = n2.nextSibling() ) {
//        dbg() << "TICK" << endl;
        QDomText t = n2.toText();
        if ( !t.isNull() ) {
//          dbg() << "TEXT: '" << t.data() << "'" << endl;
          cursor.insertText( t.data(), format );
//          dbg() << "done" << endl;
        } else {
          QDomElement e2 = n2.toElement();
          if ( !e2.isNull() ) {
            if ( e2.tagName() == "todo" ) {
              QTextImageFormat f;
              if ( e2.attribute( "status" ) == "todo" ) {
                f.setName( ":/images/todo.png" );
              } else {
                f.setName( ":/images/tododone.png" );
              }
              cursor.insertImage( f );
            }
          }
        }
      }
    }
  }
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QTextEdit *editor = new QTextEdit;

    QTextDocument *document = new QTextDocument(editor);
    QTextCursor cursor(document);

    QTextImageFormat imageFormat;
    imageFormat.setName(":/images/advert.png");
    cursor.insertImage(imageFormat);

    QTextBlock block = cursor.block();
    QTextFragment fragment;
    QTextBlock::iterator it;

    for (it = block.begin(); !(it.atEnd()); ++it) {
        fragment = it.fragment();

        if (fragment.contains(cursor.position()))
            break;
    }

//! [0]
    if (fragment.isValid()) {
        QTextImageFormat newImageFormat = fragment.charFormat().toImageFormat();

        if (newImageFormat.isValid()) {
            newImageFormat.setName(":/images/newimage.png");
            QTextCursor helper = cursor;

            helper.setPosition(fragment.position());
            helper.setPosition(fragment.position() + fragment.length(),
                               QTextCursor::KeepAnchor);
            helper.setCharFormat(newImageFormat);
//! [0] //! [1]
        }
//! [1] //! [2]
    }
//! [2]

    cursor.insertBlock();
    cursor.insertText("Code less. Create more.");

    editor->setDocument(document);
    editor->setWindowTitle(tr("Text Document Image Format"));
    editor->resize(320, 480);
    editor->show();

    return app.exec();
}

bool Converter::convertFrame(const QDomElement &element)
{
    QDomElement child = element.firstChildElement();
    QDomElement suchild = element.lastChildElement("title");
    /// svg:title alt && title 
    while (!child.isNull())
    {
        if (child.tagName() == QLatin1String("image"))
        {
            const QString href = child.attribute("href");
            const QString xname = element.attribute("name");
            QString alttitle = QString("Name:%1 - Ref:%2").arg(xname).arg(href);
            if (suchild.tagName() == QLatin1String("title"))
            {
                alttitle.append(QString(" - Title:%1").arg(suchild.text()));
            }
            QTextImageFormat format;
            format.setToolTip(alttitle);
            format.setWidth(4.0/3.0*StyleParser::convertUnit(element.attribute("width")));
            format.setHeight(4.0/3.0*StyleParser::convertUnit(element.attribute("height")));
            format.setName(href);
            format.setBackground(Qt::white);
            m_Cursor->insertImage(format);
        }

        child = child.nextSiblingElement();
    }

    return true;
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QTextEdit *editor = new QTextEdit;

//! [0]
    QTextDocument *document = new QTextDocument(editor);
    QTextCursor cursor(document);
//! [0]

//! [1]
    QTextImageFormat imageFormat;
    imageFormat.setName(":/images/advert.png");
    cursor.insertImage(imageFormat);
//! [1]

    cursor.insertBlock();
    cursor.insertText("Code less. Create more.");

    editor->setDocument(document);
    editor->setWindowTitle(tr("Text Document Images"));
    editor->resize(320, 480);
    editor->show();
    return app.exec();
}

void TextDocument::replaceImageUrl(const QUrl &oldName, const QString &newName) {
	QList <QPair<int, int> > fragments;

	QTextBlock block = begin();

	while(block.isValid()) {
		QTextBlock::iterator iterator;
		for(iterator = block.begin(); !(iterator.atEnd()); ++iterator) {
			QTextFragment fragment = iterator.fragment();
			if(fragment.isValid() && fragment.charFormat().isImageFormat()) {
				QTextImageFormat format = fragment.charFormat().toImageFormat();
				if (QUrl::fromEncoded(format.name().toUtf8()) != oldName) {continue;}
				fragments.append(QPair<int, int>(fragment.position(), fragment.length()));
			}
		}
		block = block.next();
	}


	QTextCursor cursor(this);
	cursor.beginEditBlock();
	QPair<int, int> pair;
	foreach (pair, fragments) {
		cursor.setPosition(pair.first);
		cursor.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor, pair.second);
		QTextImageFormat format = cursor.charFormat().toImageFormat();
		format.setName(newName);
		cursor.mergeCharFormat(format);
	}

void KTextCursor::insertImage( const QString &name, const QTextImageFormat &format )
{
	QTextImageFormat imageForamt = format;

	imageForamt.setName(name);
	if(!imageForamt.hasProperty(KImageKey))
	{
		imageForamt.setProperty(KImageKey, name);
	}

	if(moviePool()->insertMovie(name, name))
	{
		Q_D(KTextCursor);

		imageForamt.setProperty(KAnimationImage,true);
		document()->addResource(QTextDocument::ImageResource, QUrl(name), moviePool()->currentImage(name));
	}
	else
	{
		QImage image(name);
		if(!image.isNull())
		{
			document()->addResource(QTextDocument::ImageResource,QUrl(name), image);
		}
	}

	__super::insertImage(imageForamt);
}

/**
 * Inserts an valid image
 * Copies the specific image in the program folder
 */
void MainWindow::on_actionImage_triggered()
{
    QString scriboDir = QDir::home().absolutePath() + QDir::separator() + "scribo";

    if ( !QDir(scriboDir + QDir::separator() + "img").exists() )
        QDir().mkdir(scriboDir + QDir::separator() + "img");

    QString filePath = QFileDialog::getOpenFileName(this, tr("Select an image"),
                                      QDir::home().absolutePath(), "Bitmap Files (*.bmp)\n"
                                        "JPEG (*.jpg *jpeg)\n"
                                        "GIF (*.gif)\n"
                                        "PNG (*.png)");
    QStringList list = filePath.split( "/" );
    QString imageName = list.value(list.length() - 1 );
    QString imagePath = scriboDir + QDir::separator() + "img" + QDir::separator() + imageName;

    QFile::copy(filePath, imagePath);
    QUrl Uri ( QString ( "file://%1" ).arg ( imagePath ) );
    QImage image = QImageReader ( imagePath ).read();

    QTextDocument * textDocument = ui->textEdit_mainWindow_surface->document();
    textDocument->addResource( QTextDocument::ImageResource, Uri, QVariant ( image ) );
    cursor = ui->textEdit_mainWindow_surface->textCursor();
    QTextImageFormat imageFormat;
    imageFormat.setWidth( image.width() );
    imageFormat.setHeight( image.height() );
    imageFormat.setName( Uri.toString() );
    cursor.insertImage(imageFormat);
}

void KTextCursor::insertHtml( const QString &text, const QMap<QString, QString>& imgs )
{
	if(!imgs.isEmpty())
	{
		for(QMap<QString,QString>::const_iterator iter = imgs.begin(); iter != imgs.end(); iter++)
		{
			QString key = iter.key();
			QString file = iter.value();
			if(moviePool()->insertMovie(file, file))
			{
				//修改属性为动画。
				document()->addResource(QTextDocument::ImageResource, QUrl(file), moviePool()->currentImage(file));
			}
			else
			{
				QImage image(file);
				if(!image.isNull())
				{
					document()->addResource(QTextDocument::ImageResource, QUrl(file), image);
				}
			}
		}
	}

	int istart = position();
	insertHtml(text);
	int inow = position();

	if(!imgs.isEmpty() && inow > istart)
	{
		setPosition(istart);
		movePosition(NextCharacter, KeepAnchor, inow-istart);
		QString txt = selectedText();
		int index = txt.indexOf(QChar::ObjectReplacementCharacter, 0);
		while(index >= 0)
		{
			/*修改字体类型。*/
			setPosition(istart+index);
			movePosition(NextCharacter, KeepAnchor, 1);
			QTextCharFormat fmt = charFormat();			
			QTextImageFormat imgFmt = fmt.toImageFormat();
			QString key = imgFmt.name();
			if(imgs.contains(key))
			{
				imgFmt.setProperty(KImageKey, key);
				imgFmt.setName(imgs.value(key));
				imgFmt.setProperty(KAnimationImage, true);
				setCharFormat(imgFmt);
			}
			int idx = index+1;
			index = txt.indexOf(QChar::ObjectReplacementCharacter, idx);
		}
	}

	setPosition(inow);
}

void TextDocumentRtfOutput::createImage(const QImage &image, const QTextImageFormat &format)
{
#if 0
    QString imageUuid = QString("rtfparser://") + QUuid::createUuid().toString();
    m_document->addResource(QTextDocument::ImageResource, QUrl(imageUuid), QVariant(image));
    format.setName(imageUuid);
    m_cursor->insertImage(format);
#else
    m_cursor->insertImage(image.scaled(format.width(), format.height()));
#endif
}

void InputField::insertEmoji(EmojiPtr emoji, QTextCursor c) {
	QTextImageFormat imageFormat;
	int32 ew = ESize + st::emojiPadding * cIntRetinaFactor() * 2, eh = _st->font->height * cIntRetinaFactor();
	imageFormat.setWidth(ew / cIntRetinaFactor());
	imageFormat.setHeight(eh / cIntRetinaFactor());
	imageFormat.setName(qsl("emoji://e.") + QString::number(emojiKey(emoji), 16));
	imageFormat.setVerticalAlignment(QTextCharFormat::AlignBaseline);

	static QString objectReplacement(QChar::ObjectReplacementCharacter);
	c.insertText(objectReplacement, imageFormat);
}

void FlatTextarea::insertEmoji(EmojiPtr emoji, QTextCursor c) {
	c.removeSelectedText();

	QPixmap img(App::emojiSingle(emoji, _st.font->height));
	QString url = qsl("emoji://e.") + QString::number(emojiKey(emoji), 16);
	document()->addResource(QTextDocument::ImageResource, QUrl(url), QVariant(img));
	QTextImageFormat imageFormat;
	imageFormat.setWidth(img.width() / cIntRetinaFactor());
	imageFormat.setHeight(img.height() / cIntRetinaFactor());
	imageFormat.setName(url);
	imageFormat.setVerticalAlignment(QTextCharFormat::AlignBaseline);
	c.insertImage(imageFormat);
}

void TextEdit::insertImage( const QString & path ) {
    QPair< QString, QSize > imgKey( this->p_->addImageResource( path ) );

    QTextCursor cursor( this->textCursor() );

    QTextImageFormat format;
    format.setName( imgKey.first );
    format.setToolTip( imgKey.first );
    format.setWidth( imgKey.second.width() );
    format.setHeight( imgKey.second.height() );
    cursor.insertImage( format );

    this->setTextCursor( cursor );
}

void TextEdit::Private::replaceImage( std::map< QString, QUrl > & mapping, const QFileInfo & oldP, const QFileInfo & newP ) {
    QVariant r( this->host->document()->resource( QTextDocument::ImageResource, QUrl( oldP.fileName() ) ) );
    this->host->document()->addResource( QTextDocument::ImageResource, QUrl( oldP.fileName() ), QVariant() );
    this->host->document()->addResource( QTextDocument::ImageResource, QUrl( newP.fileName() ), r );

    this->currentCursor.deletePreviousChar();
    QTextImageFormat format;
    format.setName( newP.fileName() );
    format.setToolTip( newP.fileName() );
    this->currentCursor.insertImage( format );

    mapping.erase( oldP.fileName() );
    mapping.insert( std::make_pair( newP.fileName(), QUrl::fromLocalFile( newP.absoluteFilePath() ) ) );
    this->testCase->setImageMapping( mapping );
}

QTextImageFormat EpsRenderer::render(QTextDocument *document, const QUrl &url)
{
    QTextImageFormat epsCharFormat;

    QSizeF s = renderToResource(document, url);

    QUrl internal = url;
    internal.setScheme(QLatin1String("internal"));
    if(s.isValid())
    {
        epsCharFormat.setName(internal.url());
        epsCharFormat.setWidth(s.width());
        epsCharFormat.setHeight(s.height());
    }

    return epsCharFormat;
}

void TextEmojiWrapper::refresh()
{
    if(!p->document)
        return;
    if(!p->emojis)
        return;

    QTextDocument *document = p->document->textDocument();
    document->clear();

    QTextCursor cursor(document);
    cursor.setPosition(0);

    QString &text = p->text;
    const QHash<QString,QString> &emojis = p->emojis->emojis();
    for( int i=0; i<text.size(); i++ )
    {
        QString image;
        for( int j=1; j<5; j++ )
        {
            QString emoji = text.mid(i,j);
            if( !emojis.contains(emoji) )
                continue;

            image = emojis.value(emoji);
            i += emoji.size()-1;
            break;
        }

        if(image.isEmpty())
        {
            cursor.insertText(QString(text[i]));
        }
        else
        {
            QTextImageFormat format;
            format.setName(AsemanDevices::localFilesPrePath()+image);
            format.setHeight(18);
            format.setWidth(18);

            cursor.insertImage(format);
        }
    }
}